:root {
  --tinta: #1a1a1a;
  --tinta-suave: #666;
  --linea: #e2e2e2;
  --azul: #2f6fed;
  --fondo: #f7f7f9;
  --error: #c0392b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", sans-serif;
  background: var(--fondo);
  color: var(--tinta);
}

.barra {
  text-align: center;
  padding: 48px 20px 24px;
}
.barra h1 { margin: 0 0 8px; font-size: 32px; }
.sub { color: var(--tinta-suave); font-size: 14px; margin: 4px 0; }

.centro {
  display: flex;
  justify-content: center;
  padding: 20px;
}

.tarjeta {
  background: #fff;
  border: 1px solid var(--linea);
  border-radius: 12px;
  padding: 28px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.tab {
  flex: 1;
  padding: 10px;
  border: 1px solid var(--linea);
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--tinta-suave);
}
.tab.activa { border-color: var(--azul); color: var(--azul); font-weight: 600; }

.campo { margin-bottom: 14px; }
.campo label { display: block; font-size: 13px; margin-bottom: 4px; color: var(--tinta-suave); }
.campo input {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--linea);
  border-radius: 8px;
  font-size: 16px;
}
.campo small { color: var(--tinta-suave); font-size: 12px; }

.lanzar {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--azul);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.lanzar:hover { opacity: 0.9; }

.mensaje { color: var(--error); font-size: 13px; min-height: 18px; margin: 10px 0 0; }

.ml-cancelar {
  padding: 10px 16px;
  border: 1px solid var(--linea);
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
  height: fit-content;
}

.tarjeta.ancha { max-width: 720px; }

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}
.panel-head h2 { margin: 0 0 4px; }

.aviso {
  padding: 10px 14px;
  border-radius: 8px;
  background: #eaf3ea;
  color: #1e7a34;
  font-size: 13px;
  margin-bottom: 16px;
}
.aviso.error { background: #fbeaea; color: var(--error); }

h3 { margin: 24px 0 4px; font-size: 16px; }

.grid-canales {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.tarjeta-canal {
  border: 1px solid var(--linea);
  border-radius: 10px;
  padding: 16px;
}

.canal-titulo { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; flex-wrap: wrap; }
.estado-punto {
  width: 8px; height: 8px; border-radius: 50%;
  background: #ccc;
}
.estado-punto.ok { background: #2ecc71; }

.form-canal { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.form-canal input {
  padding: 8px;
  border: 1px solid var(--linea);
  border-radius: 6px;
  font-size: 13px;
}

.lanzar-chico {
  padding: 8px;
  border: none;
  border-radius: 6px;
  background: var(--azul);
  color: #fff;
  font-size: 13px;
  cursor: pointer;
}